Backbone Rear Speaker Extension Harness

Upgrade Your Harley's Audio with Saddle Tramp's Backbone Rear Speaker Extension Harness

Expand Your Harley's Sound Stage Are you looking to take your Harley-Davidson's audio system to the next level by adding rear speakers? Saddle Tramp's Backbone Rear Speaker Extension Harness is the perfect solution. This 4-pin backbone harness is designed to seamlessly integrate with your Harley's existing wiring, allowing you to expand your sound stage and immerse yourself in your favourite tunes while cruising down the road.

OE-Compatible Design for Seamless Integration Saddle Tramp's Backbone Rear Speaker Extension Harness is engineered to match Harley-Davidson's wiring configuration, ensuring a perfect fit and hassle-free installation. Featuring 18GA OFC (oxygen-free copper) wires and OE connectors, this harness guarantees optimal signal transfer and reliability, so you can enjoy high-quality sound without any interruptions.

Versatile Compatibility for Various Setups Whether you're using the BC-9721 splitter or the BC-9716 harness, Saddle Tramp's Backbone Rear Speaker Extension Harness is designed to work seamlessly with your setup. This versatility allows you to customize your audio system according to your preferences, ensuring that you get the most out of your Harley-Davidson's sound capabilities.


  • 4-pin backbone harness for adding rear speakers
  • Matches Harley-Davidson® wiring configuration
  • 18GA OFC (oxygen-free copper) wires with OE connectors
  • Works with BC-9721 splitter
  • Used when adding the BC-9716 harness


  • Compatible with Harley-Davidson® Hard Saddlebag models from 1998 onwards* *1998-2013 applications require the BC-9716 to use this harness *Some models without factory-installed rear audio may require a radio flash to activate the rear audio output.

Elevate your Harley-Davidson's audio experience with Saddle Tramp's Backbone Rear Speaker Extension Harness. Designed for seamless integration and uncompromising sound quality, this harness is the perfect solution for riders looking to add rear speakers to their setup. Order yours today from HogLights and get ready to immerse yourself in the ultimate audio experience on your next ride.

Vendor: Saddle Tramp
SKU: ST-BC-9720
Product Type: Audio - Head Units
Regular price
$ 85.00 AUD
Regular price
$ 0.00 AUD
Sale price
$ 85.00 AUD
Shipping Info


Covid-19 Shipping Delay Notice
Saddle Tramp Audio - Head Units Backbone Rear Speaker Extension Harness

Backbone Rear Speaker Extension Harness

$ 85.00 AUD

Backbone Rear Speaker Extension Harness

$ 85.00 AUD

Australian Shipping

Looking for affordable shipping rates for your orders? Look no further! We've got you covered with our flat rate shipping fees that will make your shopping experience a breeze.

With our shipping fees, you can enjoy peace of mind knowing that all orders are charged at a fixed rate. For orders under $200, we offer a competitive rate of $20.00. And for orders over $200, you'll enjoy an even lower rate of just $12.50 (excluding Audio products).

Speaking of Audio products, we understand how precious they are to you. That's why we've got an Australia wide special flat rate shipping fee of $25.00 for all Audio products.

At our store, we believe in providing you with the best possible service. That's why we use a variety of reliable and efficient services to ensure your order gets to you as quickly as possible.

International Shipping

International shipping is available for all of our products and is automatically calculated in our shopping cart during checkout.  All international shipping is done with a tracking number so you can watch its progress to you. Please be aware that you may be charged Import Duty or Import Taxes from your Customs Office, HogLights is not responsible for any import duties or taxes payable. 

Our General Shipping Guidelines

In stock - within 7 days
Out of stock - approx 14 days
Special order - approx 21 days

For our shipping policy, please click here

Related Products